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littleroberts littleroberts
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Posts: 447
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6 years ago
In brown air fog, which substance combines with nitrogen dioxide in the sunlight to form
  photochemical smog?
  a. carbon monoxide
  b. water vapor
  c. hydrocarbons
  d. sulfuric acid
  e. carbon dioxide

Question 2

Which factor is NOT characteristic of a city primarily plagued by photochemical smog?
  a. high concentration of sulfur oxides
  b. high concentration of nitrogen oxides
  c. significant amounts of PANs
  d. large numbers of internal combustion engines
  e. occasional thermal inversions
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Replies
wrote...
6 years ago
Answer to q. 1

C

Answer to q. 2

A
littleroberts Author
wrote...
6 years ago
Such an awesome helper!
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